Hog-ring tool



Nov. 8, 1949 R. E. POWERS 2,487,475

HOG'RING TOOL Filed Feb. 24, 1948' 3nneukor- 9/6/14) 20 5 Pom/B25attorney proximity of frame upon the Patented Nov. 8, 1949 2,482,475HOG-RING TOOL Richard E.

geles, Califi, a firm Application February 24, 1948,

7 Claims.

This invention relates to a tool, utilizing staples or rings of theso-called hog-ring type, especially adapted for securing in place thefabric covering of seat-cushions or mattresses; the rings beingclinched. through the fabric around the edgewire or frame of thearticle, or around its springs. The tool of the present invention is, insome respects, an improvement on the hog-ringing tool disclosed in mycopending application Serial No. 753,489 filed June 9, 1947, nowabandoned.

When a tool of the character described is in the form of a simple pairof pliers into whose jaws a hog-ring is manually inserted for clinchbeencustomary to employ one of the protruding points of the ring as a spikefor piercingly engaging the fabric to facilitate stretching it intoposition for fastening. Such procedure is not entirely satisfactory,since it is then necessary quite firmly in the jaws of the so doing thering may be deformed or partially closed so that it is unfit to completethe fastening operation. When the tool is provided with a magazine for astack of rings which are automatically fed sidewise into the jaws of thetool in their opening movement, employment of a point of the ring forstretching the fabric into place is precluded due to the the magazine orthe rings adjacent When the tool is of the power-operated type, the ringis held only loosely in the jaws prior to clinching and therefore itspoints cannot be employed for positioning the fabric.

It is therefore an object of this invention to provide, in a tool of thecharacter described, means independent of the hog-ring for stretchingthe fabric into place.

the one in the jaws.

further appreciation of its features and advantages, reference is to behad to the following detailed description and accompanying drawing, andto the appended claims.

In the drawing:

Figures 1 and 2 are, respectively, elevational views of a hog-ringinging this invention; and

Figure 3 is a detail view, spike member.

In the drawing, the

side and front tool embodyin perspective, of the numeral ll indicates alower portion of which a pair of jaw-members l2 are pivotally mounted bymeans of a bolt l3. The lower or jaw portions M of these members arerecessed to 'receive conventional hog-rings, of the shape shown at G5 inFig. 1 and adapted to be bent, by closing of Powers, San Marino, Calif.,to Powers Manufacturing Company,

assignor Los An- Serial No. 10,330

' welded to the upper portions the jaws, to form a closed ring with thepointed end portions of the ring overlapping; the jaws being relieved asindicated at IE to facilitate the overlapping.

Secured, as by welding, to the bottom end of the frame H is atrough-like magazine I! for a supply of hog-rings; the trough conforminggenerally to the shape of the stacked (or cementedtogether) rings andbeing open at its bottom. This magazine is substantially the same asthat shown in said copending application Ser. No. 753,489, and includesresilient means, indicated at [8, urging the rings toward the jaws intowhich they are received individually in the opening movement of the jawsafter the clinched ring has been released.

The jaw members by a tension spring l2 are biased to open position l9connected to arms 2 2| of the members. Mounted on the angled top portionof the frame H is a compressed-air operator for the tool, comprising acylinder member 22 and cooperating piston (not shown) whose stem 23carries a wedge 24 cooperable with a pair of rollers 25 mounted in thenotched top portions 2| of the jaw-members. At the top of the cylinder22 is an inclined handle 26 having a fitting 21 to which the air-'supply hose is connected.

When air pressure is applied to the piston by manual pressure on thevalve-button 28, the wedge 24 is forced downwardly to close the jaws andthereby clinch the hog-ring; the arrangement being such that uponrelease of the valvebutton the piston is immediately retracted under theforce of the bias spring Hi. It will be observed that the magazine iscentered in relation to the jaws in all operative positions that thereis clearance for parts ofthe work (such as the edge-wire of a frame)adjacent that being fastened to enter the trough.

Interposed between the magazine or trough l1 and the jaws I4 is 29(shown per se in Fig. 3) whose lower portion is formed to provide arecess 30 conforming to the shape of the interior of the trough, and apair of spikes 3i which project in substantially the same directions asthe points of the hog-ring in the jaws.

The member 29 has a hole 32 through which the bolt [3 passes, and isrigidly secured, as by welding, to the frame II and trough l1 so that itis effectively an integral part of the latter.

In operation, one of the spikes '3! is employed to aid in stretching thefabric of a seat-cushion or the like into place as or before it isfastened by the ring; the direction in which the fabric is beingstretched determining which of the two spikes is employed.

The specific embodiment of my invention herein shown and ited only bythe scope of the appended claims.

I claim as my invention: 1. In a manually-guided tool for fasteningfabfor facilitating into place, comprising means forming a spikeprojecting from said magazine adjacent said jaws and adapted topiercingly engage the fabric and hold the same in place while it isfastened by 5. A manually-guided tool for fastening fabric. to a frameby means of hog-rings, and comprising a pair of relatively-movable-jawsfor holding and clinching the rings, as well as a magazine at one sideof said jaws fora stack of rings it is fastened by the ring.

manualstretching of the fabric individually receivable by the jaws intheir opening movement: the combination therewith of means forfacilitating manual stretching of the jecting in substantially the samedirections as the points of the ring to be clinched.

6'. Av manually-guided tool for fastening fabric to a frame by means ofhog-rings, comprising: a handleframe; a

RICHARD E; POWERS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 689,721 Holland Dec. 24, 19011,163,617 Dresser Dec. 7, 1915

